{
  "id": "date-calculator",
  "version": "7.0.0",
  "name": "Date Calculator",
  "shortName": "Date",
  "description": "Calculate duration between dates or add/subtract days from a starting point.",
  "category": "Date & Time",
  "categorySlug": "date-time",
  "keywords": [
    "date"
  ],
  "status": "live",
  "workStatus": "pending",
  "reviewStatus": "pending",
  "migrationStatus": "migrated",
  "migratedDate": "2026-08-18",
  "engine": "legacy-react",
  "creator": null,
  "reviewer": null,
  "quality": {
    "availability": "live",
    "technicalReviewRecord": "/reviews/date-calculator.json",
    "qualifiedReview": "pending",
    "qualifiedReviewer": null,
    "qualifiedReviewDate": null,
    "formulaVersion": "7.0.0",
    "referenceCoverage": "references-pending",
    "releaseTestScope": "Catalog and regression checks are not a professional formula audit; consult release evidence.",
    "historicalMetadataDate": "2026-08-18",
    "historicalMetadataNotice": "The imported date is not evidence of a completed human review."
  },
  "urls": {
    "page": "/calculator/date-calculator/",
    "definition": "/calculator/date-calculator/definition.json",
    "schema": "/calculator/date-calculator/schema.json",
    "llms": "/calculator/date-calculator/llms.txt",
    "legacyDefinition": "/calculator/date-calculator.json"
  },
  "queryExample": "https://askcalculators.com/calculator/date-calculator/?daysToAdd=0&mode=diff",
  "queryParameters": {
    "startDate": {
      "label": "Start Date",
      "type": "date",
      "required": false
    },
    "endDate": {
      "label": "End Date",
      "type": "date",
      "required": false,
      "default": ""
    },
    "daysToAdd": {
      "label": "Days to Add (±)",
      "type": "number",
      "required": false,
      "default": 0
    },
    "mode": {
      "label": "Mode",
      "type": "select",
      "required": false,
      "default": "diff"
    }
  },
  "inputs": [
    {
      "id": "startDate",
      "label": "Start Date",
      "type": "date",
      "defaultToday": true
    },
    {
      "id": "endDate",
      "label": "End Date",
      "type": "date",
      "defaultValue": ""
    },
    {
      "id": "daysToAdd",
      "label": "Days to Add (±)",
      "type": "number",
      "defaultValue": 0
    },
    {
      "id": "mode",
      "label": "Mode",
      "type": "select",
      "defaultValue": "diff"
    }
  ],
  "outputs": [
    {
      "id": "result",
      "label": "Result",
      "format": "text",
      "primary": true
    }
  ],
  "formula": {
    "expression": "The selected number of calendar days, weeks, months, or years is added to or subtracted from the start date using UTC calendar arithmetic."
  },
  "examples": [
    {
      "label": "Reproducible default-input example (not a personal recommendation)",
      "inputs": {
        "endDate": "",
        "daysToAdd": 0,
        "mode": "diff"
      }
    }
  ],
  "sources": []
}